2506623653 has 2 divisors, whose sum is σ = 2506623654. Its totient is φ = 2506623652.

The previous prime is 2506623649. The next prime is 2506623661. The reversal of 2506623653 is 3563266052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2472774529 + 33849124 = 49727^2 + 5818^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506623653 - 2² = 2506623649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2506623853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253311826 + 1253311827.

It is an arithmetic number, because the mean of its divisors is an integer number (1253311827).

Almost surely, 2^2506623653 is an apocalyptic number.

It is an amenable number.

2506623653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506623653 is an equidigital number, since it uses as much as digits as its factorization.

2506623653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 38.

The square root of 2506623653 is about 50066.1927152445. The cubic root of 2506623653 is about 1358.4063753095.

The spelling of 2506623653 in words is "two billion, five hundred six million, six hundred twenty-three thousand, six hundred fifty-three".